This pack of 1/4 sanding sheets (115 x 150mm) of 40 grit are made from premium quality aluminium oxide that is resin bonded to provide improved grain adhesion, anti-static qualities and long-lasting performance. The sheets are pre-cut to fit 1/4 sanders with clamping function (115 x 105mm). The heavy-duty E-Weight backing paper makes the sanding sheet more durable - able to withstand the toughest jobs. Ideal for sanding and finishing wood, metal, aluminium alloy, painted surfaces, plastic and fillers. Compatible with most 1/4 sanders with clamping function.